<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <link rel="stylesheet" href="验证码.css" type="text/css">
    <script src="验证码.js"></script>
</head>
<body>
  <div>
      <input type="text" id="text1"> <span id="span1" onclick="show()"></span>
      <span id="span2" onclick="show()">获取验证码</span><p id="span3"></p>
  </div>
</body>
</html>